Fig. 6. CD24 prevents growth of MDA-MB-231 tumours in NOD/SCID mice. (A) Tumour volume of subcutaneously injected MDA-MB-231 CD24high and CD24low cells after 37 days (n=7; *P
0.0039). (B) Tumour volume of subcutaneously injected MDA-MB-231 CD24high CXCR4-GFP and MDA-MB-231 CD24low CXCR4-GFP cells after 37 days (n=8; * P
0.0019). (C) Cell numbers of MDA-MB-231 CD24high and CD24low cells after incubation with different SDF-1 concentrations for 24 hours (*P
0.019; **P
0.007).